Renal venous thrombosis in an infant with predisposing thrombotic factors: color Doppler ultrasound and MR evaluation.
case_report · Level V
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Abstract
We report a case of a neonate with hereditary thrombophilia presenting with renal venous thrombosis (RVT). Early color Doppler findings of RVT were lacking venous flow, and the arterial diastolic flow was reversed. This very high-resistance arterial flow is for the first time described in neonatal RVT. Magnetic resonance imaging showed low signal intensity of the renal pyramids on T1- and T2-weighted images, suggesting acute hemorrhage. After intravenous contrast injection, persistent cortical enhancement was observed along with lack of medullary enhancement. Despite the progressive reestablishment of some venous drainage, the kidney showed atrophy and loss of function.
Medical subject headings
- Renal Veins
- Thrombophilia
- Venous Thrombosis